发明授权
- 专利标题： Hard austenitic stainless steel screw
- 专利标题（中）： 硬奥氏体不锈钢螺丝
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申请号： US285630申请日： 1994-08-04
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公开(公告)号： US5417776A公开(公告)日： 1995-05-23
- 发明人: Akira Yoshino , Masaaki Tahara , Haruo Senbokuya , Kenzo Kitano , Teruo Minato
- 申请人： Akira Yoshino , Masaaki Tahara , Haruo Senbokuya , Kenzo Kitano , Teruo Minato
- 申请人地址： JPX Osaka
- 专利权人： Daidousanso Co., Ltd.
- 当前专利权人： Daidousanso Co., Ltd.
- 当前专利权人地址： JPX Osaka
- 主分类号： C23C8/80
- IPC分类号： C23C8/80 ; C23C28/00 ; F16B33/06 ; C23C8/26
摘要：
The surface layer of a hard austenitic stainless steel screw is formed as nitrided layer and then is covered by a plating coat or a resin coat to give properties such as shortening the boring time as well as heightening the surface hardness of the screw itself.
公开/授权文献
- US4868526A Frequency-doubling oscillator, tuned by varactors 公开/授权日：1989-09-19
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